Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!bloom-beacon!usc!merlin.usc.edu!aludra.usc.edu!raulmill
From: raulmill@aludra.usc.edu (Raul)
Newsgroups: gnu.emacs
Subject: Re: Reverse-video-region, and end-of-line markers
Summary: Why would someone want to skin a cat?
Keywords: end-of-line indicator
Message-ID: <4000@merlin.usc.edu>
Date: 5 Jun 89 00:10:32 GMT
Expires: 4 Jul 89 07:00:00 GMT
References: <16573@sequent.UUCP>
Sender: news@merlin.usc.edu
Reply-To: raulmill@usc.edu (Raul)
Followup-To: gnu.emacs
Distribution: usa
Organization: re-posters anonymous
Lines: 28

- 2. Second, I've seen a feature in vi (UNIX editor) which allows you
- can see exactly where the end-of-line is.  It places '$' where the end
- is.  This is useful when you suspect that you have trailing white
- space in your file (which is a pet peeve of mine to remove, and
- sometimes it's meaningful to some bizarre languages such as macro
- inputs to cpp for example).
-
- Anybody know how you can do this in emacs ??
Why not just go to the top of your file, and use replace-regexp to
delete all white space at the end of a line.  With standard keyboard
bindings, you could do: ESC < ESC % \ s SPC + $ RET RET !
If you do this a lot, you could write a little routine to do this:

(defun remove-trailing-whitespace-buffer ()
  "remove irrelevant whitespace"
  (interactive)
  (save-excursion
    (goto-char (point-min))
    (replace-regexp "\\s +$" "" nil)))

And, if you are really fanatical about this, you could put it into
your write-file-hooks.  A more conservative option would be to bind it
to some key sequence (probably one that begins with C-c).

Raul Miller                                        |
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